Add setup.py to infra_libs

infra_libs/setup.py

+# Copyright 2016 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+from setuptools import setup, find_packages
+
+setup(
+    name='infra_libs',
+    version='1.1.0',
+    description='Time series monitoring library',
+    long_description='Time series monitoring library',
+    classifiers=[
+        'Programming Language :: Python :: 2.7',
+    ],
+    packages=find_packages(exclude=['*.test']),
+    # google.protobuf - what package is that?
+    install_requires=['googleapiclient', 'oauth2client', 'protobuf'],
+    package_data={
+        '': ['*.md', '*.proto'],
+    },
+)